Bicycle frame



FIG. 1 is a rear, top, and right side perspective view of a firstembodiment of a bicyle frame embodying our new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a rear, top, and right side perspective view of a secondembodiment of a bicycle frame embodying our new design;

FIG. 9 is a right side elevation view thereof;

FIG. 10 is a left side elevation view thereof;

FIG. 11 is a rear elevation view thereof;

FIG. 12 is a front elevation view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the bicycle framthat form no part of the claimed design.

CLAIM The ornamental design for a bicycle frame, as shown and described.